/*
 * Copyright (c) 2012-2017 Red Hat, Inc.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *   Red Hat, Inc. - initial API and implementation
 */
package org.eclipse.che.plugin.jsonexample.generator;

import static org.eclipse.che.plugin.jsonexample.shared.Constants.JSON_EXAMPLE_PROJECT_TYPE_ID;

import com.google.inject.Inject;
import java.io.IOException;
import java.io.InputStream;
import java.util.Map;
import org.eclipse.che.api.core.ConflictException;
import org.eclipse.che.api.core.ForbiddenException;
import org.eclipse.che.api.core.ServerException;
import org.eclipse.che.api.project.server.FolderEntry;
import org.eclipse.che.api.project.server.handlers.CreateProjectHandler;
import org.eclipse.che.api.project.server.type.AttributeValue;
import org.eclipse.che.api.vfs.Path;
import org.eclipse.che.api.vfs.VirtualFileSystem;
import org.eclipse.che.api.vfs.VirtualFileSystemProvider;

/**
 * Generates a new project which contains a package.json with default content and a default
 * person.json file within an myJsonFiles folder.
 */
public class JsonExampleCreateProjectHandler implements CreateProjectHandler {

  @Inject private VirtualFileSystemProvider virtualFileSystemProvider;

  private static final String FILE_NAME = "package.json";

  @Override
  public void onCreateProject(
      Path projectPath, Map<String, AttributeValue> attributes, Map<String, String> options)
      throws ForbiddenException, ConflictException, ServerException {

    VirtualFileSystem vfs = virtualFileSystemProvider.getVirtualFileSystem();
    FolderEntry baseFolder = new FolderEntry(vfs.getRoot().createFolder(projectPath.toString()));

    try (InputStream packageJson =
            getClass().getClassLoader().getResourceAsStream("files/default_package");
        InputStream personJson =
            getClass().getClassLoader().getResourceAsStream("files/default_person")) {
      FolderEntry myJsonFiles = baseFolder.createFolder("myJsonFiles");
      baseFolder.createFile(FILE_NAME, packageJson);
      myJsonFiles.createFile("person.json", personJson);
    } catch (IOException ioEx) {
      throw new ServerException(ioEx.getLocalizedMessage(), ioEx);
    }
  }

  @Override
  public String getProjectType() {
    return JSON_EXAMPLE_PROJECT_TYPE_ID;
  }
}
